ArticleAnimals : an open access journal from MDPI2025
A Quadruplex RT-qPCR for the Detection of Porcine Sapelovirus, Porcine Kobuvirus, Porcine Teschovirus, and Porcine Enterovirus G.
Article in Animals : an open access journal from MDPI, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Development and evaluation of a single-tube RT-ERA-CRISPR/Cas12a assay for simultaneous detection of enterovirus G and recombinant strains with papain-like cysteine protease gene insertion.Veterinary research communications · 2026Article
- Colorimetric reverse transcription loop-mediated isothermal amplification assay for visual, sensitive, and specific detection of enterovirus G.BMC veterinary research · 2025Article
- Genetic and Evolutionary Analysis of Porcine Kobuvirus in Guangxi Province, Southern China, Between 2021 and 2025.Microorganisms · 2025Article
- Isolation and characterization of an enterovirus G strain causing diarrhea and gut microbiota dysbiosis in piglets.Frontiers in cellular and infection microbiology · 2025Article
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Authors and funding
9 authors.
Funding
Abstract
Porcine sapelovirus (PSV), porcine kobuvirus (PKV), porcine teschovirus (PTV), and porcine enterovirus G (EV-G) are all important viruses in the swine industry. These viruses play important roles in the establishment of similar clinical signs of diseases in pigs, including diarrhea, encephalitis, and reproductive and respiratory disorders. The early accurate detection of these viruses is crucial for dealing with these diseases. In order for the differential detection of these four viruses, specific primers and TaqMan probes were designed for the conserved regions in the 5' untranslated region (UTR) of these four viruses, and one-step quadruplex reverse-transcription real-time quantitative PCR (RT-qPCR) for the detection of PSV, PKV, PTV, and EV-G was developed. The results showed that this assay had the advantages of high sensitivity, strong specificity, excellent repeatability, and simple operation. Probit regression analysis showed that the assay obtained low limits of detection (LODs) for PSV, PKV, PTV, and EV-G, with 146.02, 143.83, 141.92, and 139.79 copies/reaction, respectively. The assay showed a strong specificity of detecting only PSV, PKV, PTV, and EV-G, and had no cross-reactivity with other control viruses. The assay exhibited excellent repeatability of the intra-assay coefficient of variation (CV) of 0.28-1.58% and the inter-assay CV of 0.20-1.40%. Finally, the developed quadruplex RT-qPCR was used to detect 1823 fecal samples collected in Guangxi Province, China between January 2024 and December 2024. The results indicated that the positivity rates of PSV, PKV, PTV, and EV-G were 15.25% (278/1823), 21.72% (396/1823), 18.82% (343/1823), and 27.10% (494/1823), respectively, and there existed phenomena of mixed infections. Compared with the reference RT-qPCR/RT-PCR established for these four viruses, the coincidence rates for the detection results of PSV, PKV, PTV, and EV-G reached 99.51%, 99.40%, 99.51%, and 99.01%, respectively. In conclusions, the developed quadruplex RT-qPCR could simultaneously detect PSV, PKV, PTV, and EV-G, and provided an efficient and convenient detection method to monitor the epidemic status and variation of these viruses.
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